See Princess Charlotte's First Months in Pictures

Britain's Princess Charlotte is pushed in a pram after her christening at St. Mary Magdalene Church in Sandringham, England, on July 5, 2015.

The Duchess of Cambridge carries Princess Charlotte as they arrive at the Church of St Mary Magdalene in Sandringham, England on July 5, 2015, as Princess Charlotte will be christened in front of the Queen and close family.

The Duke and Duchess of Cambridge with Prince George and Princess Charlotte with Archbishop of Canterbury Justin Welby (second right) as they leave the Church of St Mary Magdalene in Sandringham, England after Princess Charlotte's christening on July 5, 2015.

Britain's Prince William, Kate the Duchess of Cambridge, their son Prince George and daughter Princess Charlotte in a pram arrive for Charlotte's Christening at St. Mary Magdalene Church in Sandringham, England on July 5, 2015.

Prince George and his sister Princess Charlotte at Anmer Hall in Norfolk, Britain, mid-May 2015.

Prince George and his sister Princess Charlotte at Anmer Hall in Norfolk, Britain, mid-May 2015.

Prince George and his sister Princess Charlotte at Anmer Hall in Norfolk, Britain, mid-May 2015.

Prince George and his sister Princess Charlotte at Anmer Hall in Norfolk, Britain, mid-May 2015.

Princess Charlotte on May 2, 2015.